CN109111234A - Aluminium scrap ash reprocesses the formula and preparation method that homogeneous refractory raw material is made - Google Patents
Aluminium scrap ash reprocesses the formula and preparation method that homogeneous refractory raw material is made Download PDFInfo
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- CN109111234A CN109111234A CN201810911313.0A CN201810911313A CN109111234A CN 109111234 A CN109111234 A CN 109111234A CN 201810911313 A CN201810911313 A CN 201810911313A CN 109111234 A CN109111234 A CN 109111234A
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- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/62204—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products using waste materials or refuse
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3418—Silicon oxide, silicic acids, or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
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Abstract
The embodiment of the present invention provides the formula and preparation method that homogeneous refractory raw material is made in a kind of aluminium scrap ash reprocessing, formula is comprising preparing raw material and dry type bonding agent, the weight percentage for preparing raw material is 97.5wt%~99.3wt%, the weight percentage of dry type bonding agent is 0.7wt%~2.5wt%, wherein, it prepares raw material to include aluminium scrap ash and combine powder, the weight percentage of aluminium scrap ash is 70wt%~95wt%, and the weight percentage in conjunction with powder is 5wt%~30wt%.Preparation method includes preparing mixed material, compression moulding and firing processing.Homogeneous refractory raw material can be generated after sintering processes according to the aluminium scrap ash of ratio of the present invention, in conjunction with powder and dry type bonding agent, and the homogeneous refractory raw material fully meets the requirement of fire resisting sial based material, therefore aluminium scrap ash can be reprocessed in the embodiment of the present invention and generates homogeneous refractory raw material, it realizes the waste utilization of aluminium scrap ash, solves problem of environmental pollution caused by the processing of aluminium scrap ash.
Description
Technical field
The present invention relates to waste disposal technical fields more particularly to a kind of aluminium scrap ash reprocessing, and homogeneous refractory raw material is made
Formula and preparation method.
Background technique
During aluminium processing industry carries out molten refined to molten aluminum and aluminium ingot by smelting furnace, solution surface generates a kind of powder
Shape substance will therefrom extract aluminum shot after furnace body taking-up through aluminium ash machine production line, this aluminium ash after extracting aluminum shot, in aluminium row
It is known as aluminium scrap ash in the industry.Tall and big 2,300,000 tons of yield or more of annual this aluminium scrap ash, if directly filled out to these aluminium scrap ashes
It the processing such as buries, will cause serious problem of environmental pollution, therefore State Environmental Protection Administration prohibites that this dangerous waste product are inaccurate to bury
Processing, how to handle this aluminium scrap ash becomes the big problem that this industry faces.
Therefore, homogeneous refractory raw material is made in the new aluminium scrap ash reprocessing of one kind formula and preparation method are needed.
Summary of the invention
The embodiment of the present invention provides the formula and preparation method that homogeneous refractory raw material is made in a kind of aluminium scrap ash reprocessing, it is intended to
Solve problem of environmental pollution caused by the processing of aluminium scrap ash.
On the one hand the embodiment of the present invention provides the formula that homogeneous refractory raw material is made in a kind of aluminium scrap ash reprocessing, include system
Standby raw material and dry type bonding agent, the weight percentage for preparing raw material is 97.5wt%~99.3wt%, the weight of dry type bonding agent
Amount percentage composition is 0.7wt%~2.5wt%, wherein prepares raw material comprising aluminium scrap ash and combines powder, the weight hundred of aluminium scrap ash
Dividing content is 70wt%~95wt%, and the weight percentage in conjunction with powder is 5wt%~30wt%.
It according to an aspect of the present invention, include aluminum oxide and silica in conjunction with powder, in conjunction with three oxygen in powder
The component content for changing two aluminium is 30%~40%, and the component content of silica is 60%~70%.
According to an aspect of the present invention, aluminum oxide is 150 mesh to 200 mesh, and silica is 150 mesh to 200 mesh.
According to an aspect of the present invention, the weight percentage of dry type bonding agent is 1wt%~2wt%；
The weight percentage for preparing aluminium scrap ash in raw material is 80wt%~90wt%, in conjunction with the weight percentage of powder
For 10wt%~20wt%；
Alternatively, the weight percentage for preparing aluminium scrap ash in raw material is 85wt%~95wt%, in conjunction with the weight hundred of powder
Dividing content is 5wt%~15wt%.
According to an aspect of the present invention, preparing further includes alumina powder in raw material, prepares the weight of aluminium scrap ash in raw material
Percentage composition is 70wt%~85wt%, and the weight percentage in conjunction with powder is 5wt%~20wt%, the weight of alumina powder
Percentage composition is 2wt%~15wt%.
According to an aspect of the present invention, the weight percentage of dry type bonding agent is 1wt%~2wt%, prepares raw material
The weight percentage of middle aluminium scrap ash be 75wt%~85wt%, in conjunction with powder weight percentage be 10wt%~
20wt%, the weight percentage of alumina powder are 2wt%~10wt%；
Alternatively, the weight percentage of dry type bonding agent is 1.5wt%~2.5wt%, the weight of aluminium scrap ash in raw material is prepared
Amount percentage composition is 70wt%~80wt%, and the weight percentage in conjunction with powder is 10wt%~20wt%, alumina powder
Weight percentage is 5wt%~15wt%；
Alternatively, the weight percentage of dry type bonding agent is 1.5wt%~2.5wt%, the weight of aluminium scrap ash in raw material is prepared
Amount percentage composition is 75wt%~85wt%, and the weight percentage in conjunction with powder is 5wt%~15wt%, the weight of alumina powder
Amount percentage composition is 5wt%~15wt%.
Second embodiment of the invention also provides the preparation method that homogeneous refractory raw material is made in a kind of aluminium scrap ash reprocessing, including
Following steps:
Mixed material is prepared, mixed material includes to prepare raw material and dry type bonding agent, prepares the weight percentage of raw material
For 97.5wt%~99.3wt%, the weight percentage of dry type bonding agent is 0.7wt%~2.5wt%, wherein prepares raw material
Comprising aluminium scrap ash and powder is combined, the weight percentage of aluminium scrap ash is 70wt%~95wt%, in conjunction with the weight percent of powder
Content is 5wt%~30wt%；
Mixed material is added in molding die, and is pressed into parison by compression moulding；
Firing processing, carries out firing processing for parison, to obtain homogeneous refractory raw material.
According to an aspect of the present invention, firing processing step includes:
Baking step dries parison 20~26 hours at 60~160 DEG C, to obtain dry parison；
Sintering step is sintered dry parison 6~16 hours at a temperature of 1300~1700 DEG C, former to obtain homogeneous fire resisting
Material.
According to an aspect of the present invention, dry type bonding agent is made by drying wood pulp waste liquor, and wood pulp waste liquor is to prepare wood pulp
When the waste liquid that generates.
The formula and preparation method of homogeneous refractory raw material is made in aluminium scrap ash provided by the invention reprocessing, includes in formula
Aluminium scrap ash, dry type bonding agent and combine powder, and reasonably adjust formula in each component ratio, according to the aluminium scrap of ratio of the present invention
Ash can generate homogeneous refractory raw material in conjunction with powder and dry type bonding agent after sintering processes, and the homogeneous refractory raw material is complete
The requirement of full up foot fire resisting sial based material, therefore in the embodiment of the present invention, a certain proportion of combination powder is added in aluminium scrap ash
Aluminium scrap ash can be reprocessed and generate homogeneous refractory raw material, realized the waste utilization of aluminium scrap ash, can solve by material and dry type bonding agent
Certainly problem of environmental pollution caused by the processing of aluminium scrap ash.
Detailed description of the invention
By reading detailed description of non-limiting embodiments referring to the drawings, other feature of the invention,
Objects and advantages will become more apparent upon, wherein the same or similar appended drawing reference indicates the same or similar feature.
Fig. 1 is a kind of flow diagram of preparation method of the embodiment of the present invention；
Fig. 2 is a kind of flow diagram of preparation method of another embodiment of the present invention.
Specific embodiment
The feature and exemplary embodiment of various aspects of the invention is described more fully below.In following detailed description
In, many details are proposed, in order to provide complete understanding of the present invention.But to those skilled in the art
It will be apparent that the present invention can be implemented in the case where not needing some details in these details.Below to implementation
The description of example is used for the purpose of providing by showing example of the invention and better understanding of the invention.In attached drawing and following
Description in, at least part of known features and technology are not shown, unnecessary fuzzy to avoid causing the present invention；
Also, for clarity, may be exaggerated the size of part-structure.In addition, feature described below, structure or characteristic can be with
It is incorporated in one or more embodiments in any suitable manner.
In description herein, it should be noted that unless otherwise indicated, " more than ", it is " following " for comprising this number, " one
Kind or it is a variety of " in " a variety of " be meant that two or more.
The noun of locality of middle appearance described below is direction shown in figure, is not to the specific of the embodiment of the present invention
Structure is defined.In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " peace
Dress ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be to be connected directly, can also be indirectly connected.For the ordinary skill in the art, visual concrete condition understands above-mentioned
The concrete meaning of term in the present invention.
For a better understanding of the present invention, below with reference to Fig. 1 to Fig. 2 electrical connection module according to an embodiment of the present invention and electricity
Chi Mo group is described in detail.
The formula of homogeneous refractory raw material is made in a kind of aluminium scrap ash reprocessing that first embodiment of the invention provides, and includes preparation
Raw material and dry type bonding agent, the weight percentage for preparing raw material is 97.5wt%~99.3wt%, the weight of dry type bonding agent
Percentage composition is 0.7wt%~2.5wt%, wherein prepares raw material comprising aluminium scrap ash and combines powder, the weight percent of aluminium scrap ash
Content is 70wt%~95wt%, and the weight percentage in conjunction with powder is 5wt%~30wt%.
Wherein, without limitation to the size of aluminium scrap ash silty, user can set according to actual needs, it is preferred that
Aluminium scrap ash of the silty less than 0.088mm is selected, so that aluminium scrap ash is more fine and smooth, convenient for being uniformly mixed three kinds of materials.
The formula of homogeneous refractory raw material is made in aluminium scrap ash provided by the invention reprocessing, includes aluminium scrap ash in formula, dry
Formula bonding agent and combine powder, and reasonably adjust formula in each component ratio, according to ratio of the present invention aluminium scrap ash, in conjunction with powder
Material and dry type bonding agent can generate homogeneous refractory raw material after sintering processes, and the homogeneous refractory raw material fully meets fire resisting
The requirement of sial based material, therefore in the embodiment of the present invention, a certain proportion of combination powder is added in aluminium scrap ash and dry type is viscous
Agent is connect, aluminium scrap ash can be reprocessed and generate homogeneous refractory raw material, realized the waste utilization of aluminium scrap ash, be able to solve at aluminium scrap ash
Problem of environmental pollution caused by reason.
It is understood that in conjunction with powder set-up mode there are many, as an alternative embodiment, in conjunction with powder
Including aluminum oxide and silica, the component content in conjunction with aluminum oxide in powder is 30%~40%, silica
Component content be 60%~70%.Combination powder including aluminum oxide and silica, so that the reprocessing life of aluminium scrap ash
At homogeneous refractory raw material aluminium content it is higher, and make homogeneous refractory raw material hardness with higher, and it is former to improve homogeneous fire resisting
The fire resistance of material.
In some optional volume embodiments, aluminum oxide is 150 mesh to 200 mesh, and silica is 150 mesh to 200
Mesh, the aluminum oxide and silica of the smaller silty of use, so as to be uniformly mixed with aluminium scrap ash, dry type bonding agent.
In some alternative embodiments, the main component of dry type bonding agent is carbon.In these optional embodiments,
When mixed material is made in formula according to an embodiment of the present invention, dry type bonding agent plays bonding and makees during the mixing of each material
With enhancing the intensity of mixed material.During being sintered to mixed material in the later period, due to the phosphorus content of dry type bonding agent
It is higher, when so that the later period preparing homogeneous refractory raw material using the formula sintering, carbon in dry type bonding agent can and air
In oxygen combine and generate carbon dioxide, acceleration of sintering is gone on smoothly, so that sintering process is more fully simultaneously, so that sintering
Great amount of carbon dioxide is only generated in the process, will not cause secondary pollution to environment.
Wherein, there are many preparation methods of dry type bonding agent, in some alternative embodiments, dry type bonding agent is by drying
Wood pulp waste liquor is made, and wood pulp waste liquor is the waste liquid generated when preparing wood pulp.By drying preparation dry type bonding agent to wood pulp waste liquor,
It can also realize that secondary recovery is recycled to wood pulp waste liquor, reduce wood pulp waste liquor pollution on the environment.
In some alternative embodiments, the weight percentage of dry type bonding agent is 1wt%~2wt%；Prepare raw material
The weight percentage of middle aluminium scrap ash be 80wt%~90wt%, in conjunction with powder weight percentage be 10wt%~
20wt%.The 65 type homogeneous fire resistings that alumina composition content is 65% or so in the homogeneous refractory raw material as made from the formula are former
Material.
In other optional embodiments, the weight percentage of dry type bonding agent is 1wt%~2wt%, and preparation is former
In material the weight percentage of aluminium scrap ash be 85wt%~95wt%, in conjunction with powder weight percentage be 5wt%~
15wt%.The 70 type homogeneous fire resistings that alumina composition content is 70% or so in the homogeneous refractory raw material as made from the formula are former
Material.
It is prepared in raw material in some alternative embodiments to prepare the higher homogeneous refractory raw material of salic amount
It further include alumina powder, the weight percentage for preparing aluminium scrap ash in raw material is 70wt%~85wt%, in conjunction with the weight of powder
Percentage composition is 5wt%~20wt%, and the weight percentage of alumina powder is 2wt%~15wt%.It is made by the formula
Homogeneous refractory raw material in alumina composition content be homogeneous refractory raw material greater than 70%.
In some alternative embodiments, the weight percentage of dry type bonding agent is 1wt%~2wt%, prepares raw material
The weight percentage of middle aluminium scrap ash be 75wt%~85wt%, in conjunction with powder weight percentage be 10wt%~
20wt%, the weight percentage of alumina powder are 2wt%~10wt%.Oxygen in the homogeneous refractory raw material as made from the formula
Change the 75 type homogeneous refractory raw materials that aluminium component content is 75% or so.
In some alternative embodiments, the weight percentage of dry type bonding agent is 1.5wt%~2.5wt%, preparation
In raw material the weight percentage of aluminium scrap ash be 70wt%~80wt%, in conjunction with powder weight percentage be 10wt%~
20wt%, the weight percentage of alumina powder are 5wt%~15wt%.Oxygen in the homogeneous refractory raw material as made from the formula
Change the 80 type homogeneous refractory raw materials that aluminium component content is 80% or so.
In some alternative embodiments, the weight percentage of dry type bonding agent is 1.5wt%~2.5wt%, preparation
In raw material the weight percentage of aluminium scrap ash be 75wt%~85wt%, in conjunction with powder weight percentage be 5wt%~
15wt%, the weight percentage of alumina powder are 5wt%~15wt%.Oxygen in the homogeneous refractory raw material as made from the formula
Change the 85 type homogeneous refractory raw materials that aluminium component content is 85% or so.
Also referring to Fig. 1 to Fig. 2, second embodiment of the invention also provides a kind of aluminium scrap ash reprocessing and homogeneous fire resisting is made
The preparation method of raw material, comprising the following steps:
S101: mixed material is prepared.
Wherein, the mixed material is made by the formula of any of the above-described first embodiment.
S102: compression moulding.Compression moulding includes mixed material being added in molding die, and be pressed into parison.
Wherein, parison can be arbitrary character, such as rectangular, spherical, cylindricality, abnormity etc., and the present invention is with no restriction.It can
With using press machine, by mixed material compression moulding, preferably 8000 tons of model of hydraulic press is pressed.
S103: firing processing.Parison is subjected to firing processing, to obtain homogeneous refractory raw material.
The preparation method of homogeneous refractory raw material is made in aluminium scrap ash provided by the invention reprocessing, includes aluminium scrap in formula
Ash, dry type bonding agent and combine powder, and reasonably adjust formula in each component ratio, according to ratio of the present invention aluminium scrap ash,
Homogeneous refractory raw material can be generated after sintering processes in conjunction with powder and dry type bonding agent, and the homogeneous refractory raw material is completely full
The requirement of sufficient fire resisting sial based material, therefore in the embodiment of the present invention, added in aluminium scrap ash a certain proportion of combination powder and
Aluminium scrap ash can be reprocessed and generate homogeneous refractory raw material, realized the waste utilization of aluminium scrap ash, be able to solve useless by dry type bonding agent
Problem of environmental pollution caused by the processing of aluminium ash.
In some alternative embodiments, step S103 further include:
Step S1031: baking step dries parison 20~26 hours at 60 DEG C~160 DEG C, to obtain drying type
Base.
Step S1032: sintering step is sintered dry parison 6~16 hours at a temperature of 1300 DEG C~1700 DEG C, with
To homogeneous refractory raw material.
In these optional embodiments, also parison is dried before the sintering step, dry parison is formed, passes through
Parison is dried 20~26 hours at 60~160 DEG C, so that moisture content is lower in the drying parison formed, is prevented higher
At a temperature of sintering processes when, the homogeneous refractory raw material that higher moisture makes cracks, and influences homogeneous refractory raw material
Intensity.Wherein it is possible to which parison is dried in tunnel oven, aqueous weight percentage is preferably 1% in dry parison
Hereinafter, more preferably 0.5% or less.
Wherein, the temperature in sintering step can be selected according to the formula of mixed material, it is preferred that in firing step
Temperature it is directly proportional to the weight percentage of aluminium scrap ash in mixed material so that guarantee sintering it is abundant while, additionally it is possible to
Prevent energy waste.Sintering processing it is not limited here, when parison is spherical in shape, selects rotary kiln to be sintered；When parison is in
When brick shape, hyperthermia tunnel Kiln is selected to be sintered.
In some alternative embodiments, in mixed material, the weight percentage of dry type bonding agent be 1wt%~
2wt%, the weight percentage for preparing aluminium scrap ash in raw material is 80wt%~90wt%, and the weight percentage in conjunction with powder is
10wt%~20wt%, the temperature in sintering step are 1350 DEG C~1390 DEG C.
In some alternative embodiments, in mixed material, the weight percentage of dry type bonding agent be 1wt%~
2wt%, the weight percentage for preparing aluminium scrap ash in raw material is 85wt%~95wt%, and the weight percentage in conjunction with powder is
5wt%~15wt%, the temperature in sintering step are 1390~1410 DEG C.
In some alternative embodiments, in mixed material, the weight percentage of dry type bonding agent be 1wt%~
2wt%, the weight percentage for preparing aluminium scrap ash in raw material is 75wt%~85wt%, and the weight percentage in conjunction with powder is
10wt%~20wt%, the weight percentage of alumina powder are 2wt%~10wt%, the temperature in sintering step is 1410~
1450℃。
In some alternative embodiments, in mixed material, the weight percentage of dry type bonding agent be 1.5wt%~
2.5wt%, the weight percentage for preparing aluminium scrap ash in raw material is 70wt%~80wt%, in conjunction with the weight percentage of powder
For 10wt%~20wt%, the weight percentage of alumina powder is 5wt%~15wt%, and the temperature in sintering step is 1450
~1500 DEG C.
In some alternative embodiments, in mixed material, the weight percentage of dry type bonding agent be 1.5wt%~
2.5wt%, the weight percentage for preparing aluminium scrap ash in raw material is 75wt%~85wt%, in conjunction with the weight percentage of powder
For 5wt%~15wt%, the weight percentage of alumina powder is 5wt%~15wt%, and the temperature in sintering step is 1500
DEG C~1600 DEG C.
In some alternative embodiments, after step S101 further include:
Step S102 ': ageing mixture step, by the mixed material in step 101 air humidity less than 40%, temperature be 12~
20~26 hours are stood in 28 DEG C of closed environment and does ageing mixture processing, so that the moisture in mixed material disperses, and to mix
Various materials mixing in material is more uniform, improves the density of mixed material.
Embodiment
Following embodiments more particularly describe present disclosure, these being only intended to illustrate property of embodiment are said
It is bright, because carrying out various modifications and changing in scope of the present disclosure is obvious for a person skilled in the art
's.Unless otherwise stated, all parts, percentage and the ratio reported in following embodiment are by weight meter, Er Qieshi
It is all commercially available or conventionally carry out synthesis acquisition to apply all reagents used in example, and can be used directly and
Without be further processed and embodiment used in instrument it is commercially available.
Embodiment 1:65 type homogeneous refractory raw material
With weight, the weight percentage of the dry type bonding agent is 1.5wt%, prepares aluminium scrap in raw material
The weight percentage of ash is 85wt%, and the material that the weight percentage in conjunction with powder is 15wt%, which is added in blender, to carry out
It stirs evenly, prepares mixed material.
Mixed material is stood 20~26 hours in the closed environment that air humidity is 12~28 DEG C less than 40%, temperature
Ageing mixture is carried out, to be uniformly mixed and the stabilized mixture material of mixed stability.
Mixed material is added in molding die, and is pressed into adobe under the pressure of 8000 t hydraulic press.
Adobe is dried, adobe is put into tunnel oven and is successively handled, wherein tunnel oven inlet
Temperature is 30 DEG C, and the highest temperature is 120 DEG C, 24 hours dry in tunnel oven.
Adobe is added in firing room and carries out firing processing, wherein the temperature of firing room is 1360 DEG C, the firing time 12
Hour, homogeneous refractory raw material is obtained after cooling.
Test: the alumina composition content of homogeneous refractory raw material is 66.7%.
Embodiment 2:70 type homogeneous refractory raw material
With weight, the weight percentage of the dry type bonding agent is 1.5wt%, prepares aluminium scrap in raw material
The weight percentage of ash is 90wt%, and the material that the weight percentage in conjunction with powder is 10wt%, which is added in blender, to carry out
It stirs evenly, prepares mixed material.
Mixed material is stood 20~26 hours in the closed environment that air humidity is 12~28 DEG C less than 40%, temperature
Ageing mixture is carried out, to be uniformly mixed and the stabilized mixture material of mixed stability.
Mixed material is added in molding die, and is pressed into adobe under the pressure of 8000 t hydraulic press.
Adobe is dried, adobe is put into tunnel oven and is successively handled, wherein tunnel oven inlet
Temperature is 30 DEG C, and the highest temperature is 120 DEG C, 24 hours dry in tunnel oven.
Adobe is added in firing room and carries out firing processing, wherein the temperature of firing room is 1400 DEG C, the firing time 12
Hour, homogeneous refractory raw material is obtained after cooling.
Test: the alumina composition content of homogeneous refractory raw material is 72.3%.
Embodiment 3:75 type homogeneous refractory raw material
With weight, the weight percentage of the dry type bonding agent is 1.5wt%, prepares aluminium scrap in raw material
The weight percentage of ash is 80wt%, and the weight percentage in conjunction with powder is 15wt%, and the weight percent of alumina powder contains
Amount prepares mixed material to be stirred uniformly in 5% material addition blender.
Mixed material is stood 20~26 hours in the closed environment that air humidity is 12~28 DEG C less than 40%, temperature
Ageing mixture is carried out, to be uniformly mixed and the stabilized mixture material of mixed stability.
Mixed material is added in molding die, and is pressed into adobe under the pressure of 8000 t hydraulic press.
Adobe is dried, adobe is put into tunnel oven and is successively handled, wherein tunnel oven inlet
Temperature is 30 DEG C, and the highest temperature is 120 DEG C, 24 hours dry in tunnel oven.
Adobe is added in firing room and carries out firing processing, wherein the temperature of firing room is 1450 DEG C, the firing time 12
Hour, homogeneous refractory raw material is obtained after cooling.
Test: the alumina composition content of homogeneous refractory raw material is 76.3%.
Embodiment 4:80 type homogeneous refractory raw material
With weight, the weight percentage of the dry type bonding agent is 2wt%, prepares aluminium scrap ash in raw material
Weight percentage be 75wt%, in conjunction with powder weight percentage be 15wt%, the weight percentage of alumina powder
To be stirred uniformly in 10% material addition blender, mixed material is prepared.
Mixed material is stood 20~26 hours in the closed environment that air humidity is 12~28 DEG C less than 40%, temperature
Ageing mixture is carried out, to be uniformly mixed and the stabilized mixture material of mixed stability.
Mixed material is added in molding die, and is pressed into adobe under the pressure of 8000 t hydraulic press.
Adobe is dried, adobe is put into tunnel oven and is successively handled, wherein tunnel oven inlet
Temperature is 30 DEG C, and the highest temperature is 120 DEG C, 24 hours dry in tunnel oven.
Adobe is added in firing room and carries out firing processing, wherein the temperature of firing room is 1500 DEG C, the firing time 12
Hour, homogeneous refractory raw material is obtained after cooling.
Test: the alumina composition content of homogeneous refractory raw material is 82.3%.
Embodiment 5:85 type homogeneous refractory raw material
With weight, the weight percentage of the dry type bonding agent is 2wt%, prepares aluminium scrap ash in raw material
Weight percentage be 80wt%, in conjunction with powder weight percentage be 10wt%, the weight percentage of alumina powder
To be stirred uniformly in 10% material addition blender, mixed material is prepared.
Mixed material is stood 20~26 hours in the closed environment that air humidity is 12~28 DEG C less than 40%, temperature
Ageing mixture is carried out, to be uniformly mixed and the stabilized mixture material of mixed stability.
Mixed material is added in molding die, and is pressed into adobe under the pressure of 8000 t hydraulic press.
Adobe is dried, adobe is put into tunnel oven and is successively handled, wherein tunnel oven inlet
Temperature is 30 DEG C, and the highest temperature is 120 DEG C, 24 hours dry in tunnel oven.
Adobe is added in firing room and carries out firing processing, wherein the temperature of firing room is 1550 DEG C, the firing time 12
Hour, homogeneous refractory raw material is obtained after cooling.
Test: the alumina composition content of homogeneous refractory raw material is 88.1%.
The present invention can realize in other specific forms, without departing from its spirit and essential characteristics.For example, particular implementation
Algorithm described in example can be modified, and system architecture is without departing from essence spirit of the invention.Therefore, currently
Embodiment be all counted as being exemplary rather than in all respects it is limited, the scope of the present invention by appended claims rather than
Foregoing description definition, also, the meaning of claim and whole changes in the range of equivalent are fallen into all be included in
Among the scope of the present invention.
Claims (9)
1. the formula that homogeneous refractory raw material is made in a kind of aluminium scrap ash reprocessing, which is characterized in that viscous comprising preparing raw material and dry type
Agent is connect, the weight percentage for preparing raw material is 97.5wt%~99.3wt%, the weight percent of the dry type bonding agent
Content is 0.7wt%~2.5wt%, wherein described to prepare raw material comprising aluminium scrap ash and combine powder, the weight of the aluminium scrap ash
Percentage composition is 70wt%~95wt%, and the weight percentage of the combination powder is 5wt%~30wt%.
2. formula according to claim 1, which is characterized in that the combination powder includes aluminum oxide and titanium dioxide
Silicon, the component content of aluminum oxide described in the combination powder are 30%~40%, the component content of the silica
It is 60%~70%.
3. formula according to claim 2, which is characterized in that the aluminum oxide be 150 mesh to 200 mesh, described two
Silica is 150 mesh to 200 mesh.
4. formula according to claim 1, which is characterized in that
The weight percentage of the dry type bonding agent is 1wt%~2wt%；
The weight percentage for preparing the ash of aluminium scrap described in raw material is 80wt%~90wt%, the weight of the combination powder
Percentage composition is 10wt%~20wt%；
Alternatively, the weight percentage for preparing the ash of aluminium scrap described in raw material is 85wt%~95wt%, the combination powder
Weight percentage be 5wt%~15wt%.
5. formula according to claim 1, which is characterized in that described prepare further includes alumina powder in raw material, the system
The weight percentage of aluminium scrap ash described in standby raw material is 70wt%~85wt%, and the weight percentage of the combination powder is
5wt%~20wt%, the weight percentage of the alumina powder are 2wt%~15wt%.
6. formula according to claim 5, which is characterized in that
The weight percentage of the dry type bonding agent is 1wt%~2wt%, the weight for preparing the ash of aluminium scrap described in raw material
Percentage composition is 75wt%~85wt%, and the weight percentage of the combination powder is 10wt%~20wt%, the oxidation
The weight percentage of aluminium powder is 2wt%~10wt%；
Alternatively, the weight percentage of the dry type bonding agent is 1.5wt%~2.5wt%, described prepare is given up described in raw material
The weight percentage of aluminium ash is 70wt%~80wt%, the weight percentage of the combination powder be 10wt%~
20wt%, the weight percentage of the alumina powder are 5wt%~15wt%；
Alternatively, the weight percentage of the dry type bonding agent is 1.5wt%~2.5wt%, described prepare is given up described in raw material
The weight percentage of aluminium ash is 75wt%~85wt%, and the weight percentage of the combination powder is 5wt%~15wt%,
The weight percentage of the alumina powder is 5wt%~15wt%.
7. the preparation method that homogeneous refractory raw material is made in a kind of aluminium scrap ash reprocessing, which comprises the following steps:
Mixed material is prepared, the mixed material includes to prepare raw material and dry type bonding agent, the weight percent for preparing raw material
Content is 97.5wt%~99.3wt%, and the weight percentage of the dry type bonding agent is 0.7wt%~2.5wt%, wherein
The raw material for preparing includes aluminium scrap ash and combines powder, and the weight percentage of the aluminium scrap ash is 70wt%~95wt%, institute
Stating and combining the weight percentage of powder is 5wt%~30wt%；
The mixed material is added in molding die, and is pressed into parison by compression moulding；
Firing processing, carries out firing processing for the parison, to obtain homogeneous refractory raw material.
8. the method according to the description of claim 7 is characterized in that the firing processing step includes:
Baking step dries the parison 20~26 hours at 60~160 DEG C, to obtain dry parison；
Sintering step is sintered the dry parison 6~16 hours at a temperature of 1300~1700 DEG C, resistance to obtain the homogeneous
Fiery raw material.
9. the method according to claim 1, wherein the dry type bonding agent is made by drying wood pulp waste liquor, institute
Stating wood pulp waste liquor is the waste liquid generated when preparing wood pulp.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111978090A (en) * | 2020-09-04 | 2020-11-24 | 沈阳绿冶新材科技有限公司 | Aluminum-silicon light refractory castable and preparation method thereof |
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| CN103849894A (en) * | 2014-03-12 | 2014-06-11 | 郑州经纬科技实业有限公司 | Resourceful treatment system and treatment method of aluminum ashes |
| CN107602098A (en) * | 2017-10-30 | 2018-01-19 | 孝义市和中兴矿产有限公司 | Aluminium brick and preparation method thereof in a kind of high RUL |
| CN108178641A (en) * | 2018-01-13 | 2018-06-19 | 江苏嘉耐高温材料有限公司 | A kind of tundish dry material and preparation method thereof |
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| WO2006091105A1 (en) * | 2005-02-03 | 2006-08-31 | Elkem As | Refractory compositions |
| CN103849894A (en) * | 2014-03-12 | 2014-06-11 | 郑州经纬科技实业有限公司 | Resourceful treatment system and treatment method of aluminum ashes |
| CN107602098A (en) * | 2017-10-30 | 2018-01-19 | 孝义市和中兴矿产有限公司 | Aluminium brick and preparation method thereof in a kind of high RUL |
| CN108178641A (en) * | 2018-01-13 | 2018-06-19 | 江苏嘉耐高温材料有限公司 | A kind of tundish dry material and preparation method thereof |
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| CN111978090A (en) * | 2020-09-04 | 2020-11-24 | 沈阳绿冶新材科技有限公司 | Aluminum-silicon light refractory castable and preparation method thereof |
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